Roller bearing seal
AssigneeGMN Georg Muller Nurnberg GmbH
InventorHans Flander
Life of this patent
Estimating the term…
Abstract
The roller bearing seal includes a ring-shaped member integrally connected to an outer race of the roller bearing. The ring-shaped member has an outer lip portion that is spaced a predetermined amount from the inner race of the roller bearing so as to provide a gap between the ring shaped seal member and the inner race. Oppositely extending rim portions project from the lip portion in concentric fashion with respect to the lip portion to define respective spaces for accommodating grease layers. The grease layers and the lip portion constitute a seal against the inner race thereby preventing dust or other foreign particles from passing through the grease layers and the lip portion.
Claims7
A seal for a roller bearing having an outer race and an inner race, comprising
- a ring-shaped member having a central axis, said ring-shaped member being integrally connected to the outer race,
- an annular lip portion having a first predetermined inside diameter to provide a predetermined radial gap between said lip portion and said inner race, and
- a first rim portion having an inside surface and sloping toward said central axis, said first rim portion being concentric with said lip portion and extending in a first axial direction away from said lip portion,
- said first rim portion having a free edge portion having a second predetermined inside diameter with respect to said central axis, greater than said first predetermined inside diameter, to define, together with said inner race, a first substantially annular space therebetween for accommodating a first grease layer between said first rim portion and said lip portion,
- said space having a radial dimension over its entire axial length which is substantially greater than said radial gap,
- whereby said first space accommodates a layer of grease forming the first grease layer which is not subject to turbulence during operation of the roller bearing.
Dependencies are inferred from the claim text.